riker



3 Sheets-Sheet 1.

v(No Model.)

A. L. BIKER.

v FORMER FOR WINDING ARMATUR: GOILS. No. 604,843. I Patented May 31 3 SheetsSheet 2. A. L. PJKER.

FORMER FOR WINDING ARMATURE OOILS.

( No Model.)

Patented May 31,1898.

Fiji? (No Model.) 3 Sheets-Sheet 3.

A. L. BIKER.

FORMER FOR WINDING ARMATURE GOILS.

No. 604,843. Patented May 31,1898.

f0 vemZar which the coils are wound.

Unitas STATES- PATnN'r *Orric'n.

ANDREW L. Rnntaor NEW Yoninn. Y.

FORMER FOR WINDING ARMATURE-ObILS.

, SPECIFICATION forming part of Letters Patent No. 6051 843, dated May 31 1898.

Application and November 19, 1897. Serial No. 659,163. (No.model.)

To (all whom it may concern: I

Be it known that 1, ANDREW L. BIKER, of New York, N. Y. have invented new and useful Improvements in Coiling-Frames for Armature-windings, which improvements are fully set forth in the following specification.v

Thisinvention has reference to means for winding armature-coils; and it consists of a ceiling frame or former of special construction designed particularly for use in making.

- sions and approximate shape desired, and

then, by hand or otherwise, bringing it to final shape and imparting to it the necessary bends or offsets to admit of grouping the sev:

eral coils iipon the armature-core, according to the plan adopted. According tothe present invention the coil is Wound complete upona single-former of special construction, and this device forms part of the invention.

In the accompanying drawings, which form part of this specification, Figure 1 represents in perspective one of the coils as completed and ready for application to an armaturecore. Fig. 2 is a plan view of a group of such coils, showing how they fit together. is an end elevation of the bend of a coil, the covering-tape being partly removed. Fig. 4 is an end elevation of part of an armature constructed in accordance with the invention. Fig. 5 is a front elevation of a former upon Fig. (3 is an edge view thereof. Fig. 7 isa rear elevation thereof. Fig. 8 is a top view thereof. Fig. 9 is an isometric perspective of the several parts of the former dismembered.

The coil shown in the drawings is composed of three turn of round wire, but the number may of course be grcateror less. The coil is hexagonal in shape. 'lheopposite parallel sides a b, Fig. 1, are the parts which occupy slots in the armature-core. The remaining sides of the hexagon e (Z of are the connecting parts which lie beyond the ends of the core. It will. beobscrvcd that the three wires lie one above the other (not side by side) that is to say, when.lying in a slot they will all be in the same plane radial of the cylin (lcr. It will also be observed that the conis at the'bottomof the coil.

nect ing sides d e f are not bent inward to;

ward the axis of the core, but extend outs; ward in substantially the same plane as the sides a. 1).

Following the course of the coil illustrated inFigs. 1 and 3 from the end 2 it will be observed that the upper wire (marked 8) and the adjacent wire 9 continue in the same relative positions-the wire 9 under wire 8, around the coil until wire 9 ends at the terminal 3,w-hich These wires do not cross or shift positions at the vertical drop or bend, but, as shown in Fig. 3,*con- 'tinue in parallelism. Otherwise the ends 2 3 instead of being respectively at the top and bottom of the coil would both be at the top.

lhe coil is distinguished by the fact that the thickness of all parts of the coil1l. e., the

dimensio'n'measured on a horizontal transverse lin e--is equal to one thickness of wire, except at the vertical part, where'it is equal to two thicknesses, as shown at the line 5 5, Fig. 3. This is true irrespective of the number of turns (in excess of two) of which the coil is composed. As shown in Figs. 1 to 3 which illustrate a coil of three turns, the third wire at the vertical part lies behind the wires 8 9, a fourth wire would. be alongside thereof, and in case of a greater-number they would lie in pairs one, behind another, leaving the thickness at this part always twice that of the other parts of the coil. 1

lhe'windin-g of the complete armature may be considered as composed of segments equal to the number of poles of the machine; each segment being composed of a group of coils and each coil of a plurality of turns. The extent to which the connecting parts extend beyond the ends of the core is controlled'by the number of coils in cachgroup and will be somewhat-greater than thesum of the thicknesses (or smallest cross-sectional dimensions) of the group-of coils.

At the ends of each coil,for instance, at the point g,where the sidec meets the side (Z, Fig. 1-is an offset or drop, and Fig. 2 clearly illus trates how this offset and drop permit the symmetrical arrangement of the coils in the manner already explained. Considering the relative positions of the two coiis, if the side 0 is within the corrcspondin g side of the other coil-that is, between it and the end of'tho lOO ' grooves or guides besides-being in'clined'ini The parallel teoreits side (Z will be outside of the corresponding side of such other-coil, and vice versa. In other words, the sides of adjacent coils occupy reversed positions on opposite sides of. the bend or offset. This is shown in Fig. 2, where the sides of one coil are marked 0 d, of another 0 d, and of a third 0 (1*. Owing to the vertical drop the sides (Z are in a plane just beneath that of the sides a, but only so far beneat h as to permit the wires to cross each other--that is, to enable the wires composing a coil after making the turn at the angle 9 to pass inside of those wires which before the turn were outside of it, and vice versa. The construction at the two ends being identical it is unnecessary to repeat the description for the other ends of the coils formed by the sides e' andf.

The manner of and means for producing this coilwill now be explained with reference to Figs. 5 to 9. The winding frame or former is composed of two'separate parts A and B. A v cross-piece C is permanently fastened to part A and detachably fastened to part 1;, as by bolts h and wing nuts it, so that by withdrawing the bolts the two parts maybe sep-- arated. When put together for use, the two parts are separatedby a slit or winding space is, which space is crossed by two pins or bearing-surfaces m 12. These pins mark the angles at which the drops or olfscts occur, and the distance between them fixes the extreme length of the coil longitudinally of thearmatitre-shaft. Looking atthe front of the former, Fig. 5, a groove 0 is seen formed in the part 1 this groove inclining downwardly from the point where it intersects the winding-space k, which is just opposite pin in. 'lhisgroove is just wide enough to receive one thickness of the insulated wire, (designated as yin these figures,) so that successive turns of wire laid therein will lie one on top of the othe1 Starting from pin '22 and inclined in the opposit direction is another groove 0'. These grooves are connected by a channel 0 runnijr alon'gthe side of part B, as shown in Fig.6. hose;

the plane of the-face of part'Bfa're'alsoicnirved in a plane transversely thereof asjelearlyv shown in Fig. 8, this curvature b the armatnre-core.=- The 'ent B, which is bounded bythe grooves-0 channeloi is removable from part Bin the. plane of the coil, so as to facilitateremoval of the latter when complete .PieceBds held in place by the same "bolts an'dinutslas attach partsA andB together. Fig.5!) shows the former dlsmembered;,,"Looking new the roar of the former, Fig.7, sim ilargniding grooves 19 p are seenextendin respectively; from pins mand 1t;- but= these part A, and they, with lth'ejc'han is parallel with o'?,")iconstitnt three sides of the hexagonalf fi" the outline of the omfpl et n {the chema is ench other at pin 11.

- a th ickness of tw part'sthat is, sides 0 grooves 0 0' p pf. W In winding a coil the operator passes the wire y into the winding-space k, bending it at about its middle over one-of the pins-say m. (It is a matter of indifference which of the pins serves as the starting-point.) The ends of the wire then project on opposite sides of the former. The forwardlyprojcctingend is now carried through the groove 0, channel 0 and groove '0, and its end put through the space 7;- from front to rear, around pin -n-, thus completing one half-tn rn. The operator now completes the other half of the same turnby reversing the former and carrying the other end of the wire, beginning again at the pin m, through groove 1), channel 1F, and groove 1), and rnachirg pin )1 he thrusts the wire through spacek iroin rear to front.. 'lh, I start, the two wires project nn-mi us m 7; in opposite directions,having met and passed cZ e f-.are formed inzthe It is necessary to proceed in the the manner pointed out, lirst'winding half a turn on the front of thevformer and then hal fa turn' on the back thereof (or vice versa) instcad of com 'iletinga turn with the end of the wire first manipulated. If the latter course 5 were followed, the wires of adjacent turns,- would not occupy their proper relative posi tions. The winding now continues from the. pin 11 in a manner or direction the reverseotl that just traced for the first turn until acoil l having the desired number of turns is made up. The nuts and bolts-71. it are then withdrawn and parts A 13-13 separated after which he coil can readily bev removed. g It, will be observed that the wire in passing from groove 0 to groove plnaltcs a; bend over the pin on and also a slight deflection in the spacejo. The turn around pin m (or 12) brings the'wirei ntoa different plane, the distance fservations arm -weeps; n and. the grooves .0'1'""adjacentdtliereto.- The width of windg is ijnst suiiicicnt to pcr nittwo .x'ires'te reside by sideacross pinm, (or '21,) .w11'- i-n- .Fig'.-: 8: vln this way are secured i oper re'lative positions of the wires and f the st-ruetural-f characteristics .of the coil spointc'cl'out in de'scribi' Lfifoiirthis cnplan'atio the niannerfof windi'n g Figs. 1 and 3, and the fori'ner'and of oiltlioreonit will noniatter what the t'liviilali t3 be clearly III XdOISi-QQ" n umber oft'nrns in the o and. ofron wire at othe In Fig, 8a r r t former transverse to the plane senses a The core is provided with the usual longitudinal slots, and the coils are applied successively in the slots until the Workman has gone compietelyaround the core. These slots are of such depth as to receive the width of two cells. He then goes around it again, so that at the completion there are parts of two coils in each slo Obviously the invention-is susceptible, in part at least, of embodiment in formers de signed to prod uce coils differing in shape from that herein shown and described.

llavinp, thus described my invention, What I claim as new, and desire to secure by Letters Patent, is-

l. A collingframe or former comprising two parts having a winding-space between them, and grooves or Winding-channels in each part of the winding-space, those in one part being on the face of the former, and those in the other partin the rear thereof, substantially as described. i. A coiling frame or former comprising, two parts and means for attaching the two parts rigidly together and for detaching them when desired, said former having at each end a winding space or slit through which the Wire can pass from front to rear, grooves or channcls in each part, these in one part being in the face, and those in the other part in the rear, so that the coil, when completed, lies partly on one side of the former and partly on the other, substantially as described.

3. A two-part former having slits or Winding-spaces extending through the same, and pins or bearings crossing said slits, the face of one art bein rovided with two ohli ue grooves leading from the respective pins, and with a channel connecting the grooves, the rear of the other part having corresponding grooves and channel, substantisllyas described.

4. A former composed of two detachable parts, one of said parts having a detachable cheek-piece, bounded by grooves or channels in which the coil is Wound, the other part having on its oppositeside corresponding Winding-grooves, slits or spaces being; provided for the passing; of the ire from the face to the rear of the former, and vice versa, substantially as described.

In testimony whereof I have signed this specification in the presence of two subscrib ing witnesses.

ANDREW L. BIKER.

iVitnesses:

SAML. BIKER, J12, J NO. M. RICHARDS. 

